Inventor · disambiguated record
Ralf Hagedorn
Also filed as: HAGEDORN RALF
6 granted patents·148 citations·filing 2003–2012
78Inventor score
Top patents by PatentIndex Score
6 records- 0196US6921985B2Low voltage ride through for wind turbine generatorsGEN ELECTRIC·Filed 2003·Granted Jul 26, 2005·137 cites·45 claims
- 0274US7235996B2Functionality test methodGEN ELECTRIC·Filed 2005·Granted Jun 26, 2007·9 cites·11 claims
- 0355US8933652B2Rotor-blade pitch controlling drive for a wind turbineHAGEDORN RALF·Filed 2010·Granted Jan 13, 2015·2 cites·10 claims
- 0448US9726146B2Assembly for fixing a rotor blade of a wind power plantAREVA WIND GMBH·Filed 2012·Granted Aug 8, 2017·0 cites·8 claims
- 0541US9112384B2Arrangement and method for avoiding stray currents in wind power plantsHAGEDORN RALF·Filed 2012·Granted Aug 18, 2015·0 cites·8 claims
- 0638US8952661B2Emergency power supply deviceHAGEDORN RALF·Filed 2010·Granted Feb 10, 2015·0 cites·15 claims
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